Deriving a formula for finding the area of a circle

A large, heavy-paper or cardboard circle, about 12" in diameter. Scissors. Rulers. Colored markers or crayons. 1. Discuss with students practical applications for finding the area of a circle. Explain the problems associated with partitioning a circle into unit squares to find its area. Elicit suggestions on how the area might be determined. 2. ................
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